/**
 * Copyright (c) 2009, Christian Schneider
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  - Neither the names of the authors nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package com.ruinwesen.patchdownloader.indexer;

import com.ruinwesen.patchdownloader.patch.Tag;

public class Category {

    private Tag tag;
    private int size;
    private transient String name;

    public Category(Tag tag, int size) {
        this.tag = tag;
        this.size = size;
    }
    
    public Tag tag() {
        return tag;
    }
    
    public int size() {
        return size;
    }

    public String name() {
        if (name == null) {
            name = formatCategoryTagname(tag.value());
        }
        return name;
    }
    
    @Override
    public int hashCode() {
        return tag.hashCode();
    }

    @Override
    public boolean equals(Object o) {
        return o!= null && 
            (o == this || o instanceof Category && ((Category)o).tag.equals(tag));
    }
    
    private static String formatCategoryTagname(String name) {
        String PREFIX = "category:";
        if (name.length()>=PREFIX.length()) {
            name = name.substring(PREFIX.length());
        }
        StringBuilder sb = new StringBuilder();
        int whitespaceAt = -1;
        for (int i=0;i<name.length();i++) {
            char ch = name.charAt(i);
            if (whitespaceAt==i-1) {
                if (Character.isWhitespace(ch))  {
                    whitespaceAt = i; // don't add second whitespace character
                } else {
                    sb.append(Character.toUpperCase(ch));
                }
            } else {
                if (Character.isWhitespace(ch))  {
                    sb.append(' ');
                } else {
                    sb.append(ch);
                }
            }
        }
        return sb.toString();
    }

}
